<template>
  <!-- 注册页面的整体盒子 -->
  <div class="reg-container">
    <!-- 注册的盒子 -->
    <div class="reg-box">
      <!-- 标题的盒子 -->
      <div class="title-box"></div>
      <!-- 注册的表单区域 -->
      <!-- 
        :model：指向收集的表单的数据对象
        :rules:指向表单的验证规则对象，储存了所有的验证规则
       -->
      <el-form class="reg" :model="formData" :rules="formRules" ref="formRef">
        <!-- prop:指向具体的验证规则 -->
        <el-form-item prop="username">
          <el-input
            v-model="formData.username"
            prefix-icon="el-icon-user"
            placeholder="请输入用户名"
          ></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            v-model="formData.password"
            prefix-icon="el-icon-lock"
            placeholder="请输入密码"
          ></el-input>
        </el-form-item>
        <el-form-item prop="repassword">
          <el-input
            v-model="formData.repassword"
            prefix-icon="el-icon-lock"
            placeholder="请确认密码"
          ></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" style="width: 100%" @click="submitForm"
            >注册</el-button
          >
          <el-link>去登陆</el-link>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  name: "Reg",
  data() {
    //自定义校验规则函数，校验密码是否相同
    //callback 失败:callback（new Error('错误的描述')) 成功：callback() 放行，如果没有使用callback校验无法获取结果
    var samePwd = (rule, value, callback) => {
      //rule 校验规则
      console.log(value);
      if (value === "") {
        callback(new Error("请再次输入密码"));
      } else if (value !== this.formData.password) {
        callback(new Error("两次密码不一致"));
      } else {
        callback();
      }
    };
    return {
      formData: {
        username: "",
        password: "",
        repassword: "",
      },
      formRules: {
        username: [
          { required: true, message: "请输入用户名称", trigger: "blur" },
          {
            pattern: /^[0-9a-zA-Z]{1,10}$/,
            message: "请输入长度为1~10字母数字",
            trigger: "blur",
          },
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            pattern: /^\S{6,15}$/,
            message: "请输入长度为6~15非空字符串",
            trigger: "blur",
          },
        ],
        repassword: [
          {
            pattern: /^\S{6,15}$/,
            message: "请输入长度为6~15非空字符串",
            trigger: "blur",
          },
          { validator: samePwd, trigger: "blur" },
        ],
      },
    };
  },
  methods: {
    submitForm() {
      //this.$refs.fromRef 获取form组件，使用form组件调用 validate（函数）
      this.$refs.formRef.validate(async (valid) => {
        console.log(valid);
        //valid：返回值 true||false
        //-所有的校验通过了吗，返回才是true，那么只要有一项失败，返回的就是false
        if (!valid) return; //校验失败
        //校验通过，发送请求
        const { data: res } = await this.$http.post("/api/reg", this.formData);
        console.log(res);
        if (res.code !== 0) return this.$message.success(res.message);
        // 注册成功
        this.$message.success(res.message);
        //跳转到登陆页面login
        this.$router.push("/login");
      });
    },
  },
};
</script>


<style lang="less" scoped>
.reg-container {
  background: url("../../assets/images/login_bg.jpg") center;
  background-size: cover;
  height: 100%;

  .reg-box {
    width: 400px;
    height: 335px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    .reg {
      padding: 0 25px;
    }

    .title-box {
      height: 60px;
      background: url("../../assets/images/login_title.png") center no-repeat;
    }
  }
}
</style>